Cassell's book of birds; vol. 2Brehm, Alfred Edmund
Science
Cassell's book of birds; vol. 2
Brehm, Alfred Edmund
Birds
The CONDOR (_Sarcorhamphus gryphus_, or _Sarcorhamphus condor_) has
been the subject of even more extravagant tales than its European
representative, the Lämmergeier, as its name of Gryphus or Griffin
indicates; indeed, the travellers of former times seem to have thought no
anecdotes too absurd to impose upon the popular mind either concerning
the bird itself, or other productions of the countries it inhabits. The
plumage of the full-grown Condor is principally black, enlivened by a
slight metallic lustre; the upper part of the wings is black, but all the
quills are tipped with patches of white, which become gradually so broad
that the shoulder feathers are almost entirely white, and only black at
their origin. The back of the head, face, and throat are blackish grey,
the neck flesh colour, and the region of the crop pale red; the fold
of skin and two warty lappets on either side of the throat of the male
are bright red. In both sexes the neck is surrounded by a ruff of white
feathers; the eyes are fiery red, the beak horn colour, and the feet
dark brown. Humboldt gives the dimensions of the Condor as follows:--The
body three feet three inches, span across the wings eight feet nine
inches, and the tail fourteen inches. The female, according to the same
authority, is one inch shorter, and nine inches less in breadth.
All the highlands of South America, from Quito to fifteen degrees south
latitude, afford a home to this huge bird, whose powers of flight are
stupendous; indeed, we are told on reliable authority that it is capable
of soaring to an altitude of 22,000 feet above the level of the sea,
thus surpassing any other member of the feathered race in its wonderful
strength of wing. In Peru and Bolivia it lives and breeds upon the
sea-coast, but is by no means so numerous as in mountainous districts.
Except during the period of incubation, Condors fly in large parties,
spending the entire day in sailing majestically about in search of
food, and pass the night perched upon one of their favourite ledges or
lofty pinnacles of rock. "Near Lima," says Mr. Darwin, "I once watched
several Condors for half-an-hour together. They moved in large curves,
sweeping in circles, ascending and descending, without once flapping
their pinions. As they glided close to my head I intently watched from an
oblique position the outlines of the separate and terminal feathers of
their wings. If there had been the slightest vibratory motion these would
have been blended together; but they remained distinct under the blue
sky. If the bird wished to descend, the wings for a moment collapsed,
and then, when again expanded with an altered inclination, the momentum
gained by the rapid descent seemed to urge it upward with the steady,
even motion of a paper kite."
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